SAPI settings for speech recognition grammar

Applications can use the Spsharedrecocontext interface to create different connections to the speech recognition engine. Each connection can use its own event and use a different speech recognition grammar (grammars). Every application that is based on SAPI speech recognition must have at least one Spsharedrecocontext interface.

The first method: Define your own grammar

Using System;

Using System.Collections;

Using System.ComponentModel;

Using System.Drawing;

Using System.Data;

Using System.Windows.Forms;

Using System.Diagnostics;

Using Speechlib;

Namespace WindowsFormsApplication3

{

public partial class Form1:form

{

Private Speechlib.ispeechgrammarrule menurule = null;

Private Speechlib.spsharedrecocontext Objrecocontext;

Private Ispeechrecogrammar grammar;

Public Form1 ()

{

InitializeComponent ();

}

private void Button1_Click (object sender, EventArgs e)

{

Get a Recocontext instance.

Objrecocontext = new Speechlib.spsharedrecocontext ();

Assign an event to the hypothesis event (intermediate level tentative recognition, i.e., primary, temporary identification).

Objrecocontext.hypothesis + = new _ispeechrecocontextevents_hypothesiseventhandler (hypo_event);

Assigns an event to speech recognition.

Objrecocontext.recognition + = new _ispeechrecocontextevents_recognitioneventhandler (Reco_Event);

Creates an grammer instance.

Grammar = Objrecocontext.creategrammar (0);

Label1. Text = "Speak out one of the following./r/n1. The People 2. Marx 3. Sun Yat-sen 4. Engels/r/n5. Yang Mao 6. Wang Fang 7. World 8. Chengdu ";

Activates the menu command.

Menurule = grammar. Rules.add ("Menucommands", Speechruleattributes.sratoplevel | Speechruleattributes.sradynamic, 1);

Object propvalue = "";

MenuRule.InitialState.AddWordTransition (NULL, "People", "" ", Speechgrammarwordtype.sglexical," people ", 1, ref propvalue, 1.0F) ;

MenuRule.InitialState.AddWordTransition (NULL, "Marx", "" ", Speechgrammarwordtype.sglexical," Marx ", 2, ref propvalue, 1.0F);

MenuRule.InitialState.AddWordTransition (NULL, "Sun Yat-sen", "", Speechgrammarwordtype.sglexical, "Sun Yat-sen", 3, ref propvalue, 1.0F);

MenuRule.InitialState.AddWordTransition (NULL, "Engels", "" ", Speechgrammarwordtype.sglexical," Engels ", 4, ref propvalue, 1.0F);

MenuRule.InitialState.AddWordTransition (null, "Yang Mao", "" ", Speechgrammarwordtype.sglexical," Yang Mao ", 5, ref propvalue, 1.0F);

MenuRule.InitialState.AddWordTransition (null, "Wang Fang", "", Speechgrammarwordtype.sglexical, "Wang Fang", 6, ref propvalue, 1.0F) ;

MenuRule.InitialState.AddWordTransition (NULL, "World", "" ", Speechgrammarwordtype.sglexical," World ", 7, ref propvalue, 1.0F) ;

MenuRule.InitialState.AddWordTransition (NULL, "Chengdu", "" ", Speechgrammarwordtype.sglexical," Chengdu ", 8, ref propvalue, 1.0F) ;

Grammar.Rules.Commit ();

Grammar. Cmdsetrulestate ("Menucommands", speechrulestate.sgdsactive);

}

private void reco_event (int streamnumber, Object streamposition, Speechrecognitiontype Recognitiontype, Ispeechrecoresult Result)

{

TextBox1.Text = Result.PhraseInfo.GetText (0,-1, true);

}

private void hypo_event (int streamnumber, Object streamposition, Ispeechrecoresult Result)

{

TextBox2.Text = Result.PhraseInfo.GetText (0,-1, true);

}

}

The second method: Do not define grammar use SAPI to automatically recognize input speech accuracy is not high public class Sprecognition      {       &NBSP ;  private static sprecognition _instance = null;           private Speechlib.ispeechrecogrammar ISRG;           private speechlib.spsharedrecocontextclass Ssrcontex =null;           private System.Windows.Forms.Control CDisplay  ;           private sprecognition ()          {     &N Bsp        ssrcontex = new Spsharedrecocontextclass ();              &NBSP;ISRG = Ssrcontex.creategrammar (1);                         speechlib._ispeechrecocontexteve Nts_recognitioneventhandler Rechandle =                    New _ISPEECHR EcocontextevEnts_recognitioneventhandler (contexrecognition);               ssrcontex.recognition + = Rechandle;         }          public void Beginrec (Control tbresult)          {                         &NBSP;ISR G.dictationsetstate (speechrulestate.sgdsactive);               cdisplay = Tbresult;         }          public static Sprecognition instance ()          {              if (_instance = = null)      &N Bsp             _instance = new Sprecognition ();               return _instance;         }          public void Closerec ()          {             &NBSP;ISRG. Dictationsetstate (speechrulestate.sgdsinactive);         }           private void contexrecognition (int iindex,obje CT obj,speechlib.speechrecognitiontype type,speechlib.ispeechrecoresult result)          {& nbsp;             cdisplay.text + = result. Phraseinfo.gettext (0,-1,true);         }       } third method: External read XML grammar (c://1.xml)   Private Speechl Ib. Spsharedrecocontext SSRC;         private Ispeechrecogrammar SRG;         private void Button1_Click (object sender, EventArgs e)         {            &NBSP;SSRC = new Spsharedrecocontext ();            &NBSP;SRG = ssrc. Creategrammar (1);  &nbSp         &NBSP;SRG. Cmdloadfromfile ("C://1.xml", speechloadoption.slodynamic);//read-in rules           //SSRC. Eventinterests = speechrecoevents.sreallevents;//is described in "voice events"            &NBSP;SSRC. Recognition + = new _ispeechrecocontextevents_recognitioneventhandler (ssrc_recognition);//Add Recognition Events                 &NBSP;SSRC. Hypothesis + = new _ispeechrecocontextevents_hypothesiseventhandler (hypo_event);            &NBSP;SRG. Cmdsetrulestate (SRG. Rules.item (0). Name, speechrulestate.sgdsactive);//Activation rules                }    & nbsp    private void button2_click (object sender, EventArgs e)         {                   }         private void button3_click (objec T sender, EventArgs e)  &nBsp      {                    }    &nbsp ;    void ssrc_recognition (int streamnumber, Object streamposition, Speechrecognitiontype Recognitiontype, Ispeechrecoresult Result)         {            textbox1.text = Result.PhraseInfo.GetText (0,-1, true);         }         private void hypo_event (int streamnumber, Object Strea Mposition, Ispeechrecoresult Result)         {            tex Tbox2.text = Result.PhraseInfo.GetText (0,-1, true);         } 1.xml <?xml version= "1.0" encoding= "gb2312"?>  <grammar langid= "804" & gt;  <rule name= "command" toplevel= "ACTIVE" >  <L>  <P> end of password </P>  <P> zoom in </P>  <P>Home</P>  <p>end</p>  <P> prev </P>  <P> next </P>  <P> up </P>  <P> down </P>  <P> left window </P>  <P> right window </P>  <P> close </P>  <P> undo </P>  <P> Refresh </P>  </L>  </RULE>  </GRAMMAR> If you want to source code please leave your email